It was time for a change ... a change of hair color, that is. Tired of being blonde, Nicole Richie debuted her new 'do at the launch of her House of Harlow 1960 Holiday Collection early in the week. The darker hue prompted Richie to comment cheekily on her Twitter: "I feel smarter already." Charley Gallay/WireImage.com - December 12, 2009
Week in Photos: December 13-19, 2009
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